Trap and drain



Dec. 15 ,1.925.

L. voN DABRowsKl TRAP AND DRAIN A Filed Feb. 27. 1924 153/ im M, my@www! lill/IH. 1

Patented Dec. 15, 1925.

PATENT OFFICE.

LOTHAR VON DABROWSKI, 0F CHICAGO, ILLINOIS.

TRAP AND DRAIN.

Application filed February 27, 1924. Serial No. 695,409. i

To all who/m, t may concern.'

Be it known that I, Lo'rHAn voN DAB- nowsKI, a citizen of the UnitedStates, and a resident of Chicago, county of Cook, and State ofIllinois, have invented certain new and useful Improvements in Traps andDrains, of which the following is a specification.

My invention has reference more particularly to a combined trap anddrain of the type used in refrigerator cars.

The cooling of refrigerator cars is effected by the use of ice and salt,and it is customary to provide trapped outlets at suitable pointsleading through the floor of the car, to drain off the water resultingfrom the melting of the ice. Inasmuch as the outlet pipes vary in lengthaccording to the construction of the car, the type of drains now in use,which require a special construction of the outlet or drain pipe, areobjectionable on account of the expensey and also because such traps andpipes have to be specially made for each installation. With myinvention, however, this objection is avoided, as my construction doesnot require a special form of pipe but uses an ordinary pipe which ismerely cut to length and then threaded or drilled for rivets at theends.

The principal objects of my invention are to :facilitate the equippingof refrigerator cars with trap and drain pipes; to avoid the necessityof special patterns to make the traps and drain pipes; to construct thedevice so that a plain length of pipe may be employed by merely cuttingthe pipe to the `required length and threading or drilling rivet holesat the ends; to provide an improved arrangement for mountinga trap coverand a spout on the ends of the pipe; to improve the connectiony of thepipe with the bowl; and in general, to provide a simple, inexpensive andeasily constructed drain andtrap structure for refrigerator cars.

On the drawings: f

Fig. 1 is a sectional view of my improved drain and trap, and afragmentary portion ofy a refrigerator car to which it is applied;

Fig. 2 a sectional View of a `modified form `of my drain ,and trap l;

Fig. o a sectional view on the line 3-3 of Fig. 2;

Fig. 4 a vertical sectional view of a modied form of spout connection;

Fig. 5 a sectional view on the line 5-5 of Fig. l; and

Fig. 6 a sectional view showing the bowl and pipe before assembling.

Referring to the drawings, the reference numerals l and 2 indicaterespectively the inner and outer sheeting of an insulated wall of arefrigerator car, the reference numeral 3 indicating heat insulatingmaterial which is interposed between the inner and outer sheeting. Abowl-shaped member 4, preferably of drawn metal, is set into the 'bottomwall or Hoor of the car as shown, said bowl being provided with anannular flange 5 which is mortised into the inner sheeting 1 as shown,and-secured in place to a lining 7 by the rivets 6. The lining 7 of thecar extends over the flange 5 and has the inner edge turned down asindicated at S to drainv into the bowl.

The bowl 4 is formed with an opening in 75 the bottom surrounded by anupturned flange 9, and a drain pipe l() projects up through the outersheeting 2 and through the opening in the bottom of the bowl 4 as shown,said opening being of such size that the pipe 10 has a driving fit withthe flange 9, whereby the pipe is securely held in place. The pipe mayalso be additionally secured in place by being spot-welded in two orthree places at the top of flange 9.

In previous structures it has been customary to turn the flange 9downwardly and this forms a crevice between the pipe and the bowl 4inwhich sediment collects, particularly salt, which is carried olf withthe 90 water, and this accumulation of sediment tends to rust or eataway the adjoining metal as the same can not be easily removed. lith myconstruction the turning up lof the flange 9 forms a rounded corner atthe junc- 95 ture of said flange with the body of the bowl 4, andprevents any such accumulation of sediment as the same cannot be easilyremoved. Moreover, I prefer to galvanize the parts after they areassembled, and this serves to fill in the offset or shoulder at the topof the Ylange 9 and also unites the pipe and bowl more securely.

A collar 11 is secured to the upper end of the pipe l0, and has a numberof lugs 12 arranged at intervals therearound and projecting up above theupper cud et the pipe 1() to support a cap 13, and a'tiord outlets 1lbetween the lugs 1Q, through which the water overflows from the bowl tinto the pipe 10. This cap 18 has an annular flange. extendingdownwardly below the open-- ings 14e so that the level of the water inthe bowl l is above the lower edge of the flange 15 and forms a waterseal for the drainage out-let. This cap 13 is preferably hinged so thatit may be turned back away from the top of the pipe 10, and to this endsaid cover is formed at one side with a hinge extension 16 embracing alaterally extending hinge lug 17 of the collar 11 to which the cover ispivoted by a pin 18, which is preferably in the forni of a cotter pin.

The collar 11 may be secured ou the pipe 10'in any convenient manner, asfor example, by an ordinary threaded connection as indicated at 19 inFig. 1, or by rivets placed at intervals around the collar 1l asindicated at 2() in Fig. 2.

For attaching a spout to the lower end of the pipe 1U, a collar islikewise secured onto the lower end ol the pipe by a. threadedconnection as indicated at 21` in Fig. 1, or by rivets as indicated atQ2 in YFigs. 2 and l. This spent, which is preferably et sheet metal,may he hinged directly te the collar as shown iu Figs. 1 and 2, or maybe hinged to the lower end of a downwardly extending section which isfixed onto the collar as shown in Fig. t. lVhen this spout is hingedente the collar, the latter is formed as shown at with a pair of hingelugs Q4 at one side between which the upper end ot the hinge strap enthe spout is pivoted on the pin Q6, which is preferably in the form of acotter pin. The spout in such case is formed with a depending section 27with an inclined section 28 secured to the lower end, and the upper endof the section 27 has a rolled edge Q9 which is held by the weight oithe laterally extending section 28 against a liange 30 ou the collar 23.

ln the spout construction shown in Fig. 4, the laterally extending spoutsection 31 is hinged at 3Q to the upright spout section 33, and thelatter has the upper end expanded to form a shoulder 9,4 which iitsagainst an annul-ar flange en the collar 36, and the up per edge of thespout section 33 is turnedv over the flange 35 as indicated at 37 tolock the spent onto the collar.

lllhile I have shown and described my invention in a preferred form, Iam aware that various changes and modifications may be made withoutdeparting from the principles otl my invention, the scope of which is tobe determined by the appended claims.

l claim as my invention:

1. In a refrigerator drain, the combination of a bowl having a centralbottom opening with an upturned flange, a drain pipe extending upwardlythrough the bottoni of the bowl and anchored to the flange, a cap havingan annular flange extending downwardly in the bowl around and spacedfrom the upper end of the pipe, and an annular collar secured around theupper end ot the pipe with its lower edge spaced from the bottom of thebowl and having the cap hinged thereto, said collar being provided withspaced lugs at its upper end with intermediate openings for holding` thecap at an elevation above the upper end ott the pipe to alford acirculation space between the upper end of the pipe and the top wall ofthe cap.

Q. In a refrigerator drain, the combination of a bowl, a drain pipeextending upwardly through the bottom of the bowl, a cap having anannular `fiange extending downwardly in the bowl around and spaced fromthe upper end of the pipe, a collar secured to the upper end of the pipeand having a lateral hinge lug and the cap having a lateral extensionembracing the lug and hinged thereto, said collar being provided with aplurality et' lugs extending upwardly at intervals thercarouml, so as tohold the top wall of the cap at an elevation above thc upper end of thepipe.

Il. lu a refrigerator drain, the combina` tion el a bowl, a drain pipeextending upwardly through the bottoni of the bowl, a collar threaded onthe upper end of the pipe spaced from the bowl bottom, a cap having anannular flange extending downwardly in the bowl around and spaced fromthe upper end of the pipe and laterally from the pipe and collar, ahinge pivotally connecting the collar and cap so that the latter isadapted to be swung away from the upper end of the pipe, and a pluralityof upwardly extending lugs on the collar arranged at intervalstherearound outwardly of the pipe for holding the top wall of the cap atan elevation above the upper edge of the pipe.

a. vIn a refrigerator drain, the combination of a bowl, a drain pipeextending up wardly through the bottom of the bowl and having a collarsecured on each end thereof, a cap hinged on the upper collar and havingan annular flange extending downwardly in the bowl around and spacedfrom the upper end of the pipe, means on the upper collar for holdingthe top wall of the cap at an elevation above the upper end of the pipe,and a spout suspended from the collar on the lower end of the Dine.

5. In a refrigerator drain, the combination with a lining, of a bowlseated in a depression below the lining, the bowl having an opening inthe bottom with an upturned flange, a drain pipe extending up throughthe opening and anchored'to the flange to foi-n1 a liquid sealtherebetween, said pipe extending considerably above the flange, a caphaving a surrounding depending flange extending below the upper end ofthe pipe, a collar detaohably mounted on the upper end of the pipe aboveand spaced from the flange and having means to support the Cap 10 inspaced relation to the upper end of the pipe with openings ali'oijding acirculation space and water seal under the cap between the 'pipe andbowl.

LOTHAR voN DABROWSKI.

